18466955

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{787}}^1$

素因数の和:843

約数の個数: 24

約数和(自身を含む): 25219152

約数和(自身を除く): 6752197

約数列:

[1, 5, 13, 19, 65, 95, 247, 361, 787, 1235, 1805, 3935, 4693, 10231, 14953, 23465, 51155, 74765, 194389, 284107, 971945, 1420535, 3693391, 18466955]

約数ペア:

[(1, 18466955), (5, 3693391), (13, 1420535), (19, 971945), (65, 284107), (95, 194389), (247, 74765), (361, 51155), (787, 23465), (1235, 14953), (1805, 10231), (3935, 4693)]